Populated With Certain Values Of A Parameter From Mssql Database?
Oct 1, 2010
I have a question on a datagrid object in vb.net 2008, that I what to be populated with certain values of a parameter from mssql database. The connection is made, the column header are loaded, but I what, when the form is loaded, to populate the datagrid only with certain values, doing a select commnad where id has a value given by me.What is the command to have this select done and display the values in the datagrid?
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Dec 12, 2010
How to insert and retrive multiple asp.net checkboxes values to MSSQl database as comma seperaed string 1,2,3,4,5 using vb.net ? and retrieve the inserted checkbox chekched in disabled form ..using vb.net url...I want this type of whole layout in vb.net means if user registered selected seats then then next the same page load for todays date the selected seats will be disabled
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Jun 23, 2011
My code below will save records to my database as long as all the parameter have values. One of the parameter is @MI (middle initial), however, there are times that student have no middle initial so when I click my button I get error. I want to still save the record even if one of the parameter value is missing.
[code]...
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Oct 26, 2011
Is it possible to make a procedure have a single parameter but the values for that parameter are more than one? I have this procedure:
Public Sub autoComplete(ByVal cboCombo As ComboBox)
With cboCombo
.AutoCompleteMode = AutoCompleteMode.Append[code]....
Now I was wondering if there is a way to use it like this:
autoComplete(myCombobox1, myCombobox2, myCombobox3)
Or can I use a procedure like this with 'With...End With'?
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Jan 26, 2010
I have completed all the code for a loan calculator, but am unsuccessful in displaying decimal variables in string as "currency". I have added the .toString("c2") statement and only get one array to display in currency, then the second array does not round properly. Is there a convert function that will work? Here's my code:
Public Class frmLoanCalc
'Ken Schoening
'Loan Calculator
[Code].....
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May 31, 2012
In a public module (codefile) I defined a data structure called db_connection,then declared a variable of that type like so: Public db_con as db_connection I pass db_con to a sub. I expected the db_con structure to be populated with values after the call to the sub. It does not.This is something I have done for years in vb6.What might have changed to prevent this from working?
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Nov 11, 2010
i have a Checkedlistbox in a windows form, and have defined 5 values in it.Also the form holds a datagrid in it. i have manually defined 2 columns in it.Now i would like to populate datagrid with some data according to the check list values selection. When any selection was done in the checkedlistbox, some data need to added to the gird.in case if i am ticking further selection, i need the datagrid to be inserted with additional values with the prior populated data.
being a beginner, i am not able to get any idea to get this worked.
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Feb 7, 2010
I have a checked listbox that I've populated with a table that has three columns, Name, Address, Phone - and have done so successfully, but when i display the items in the listbox, i would like to retrieve additional values of the checked items other than the primary displayitem.[code]'we now have an array full of the Name column only, from our checked items 'i'd like to grab the other two as well (not to display in the listbox, but to use elsewhere as variables) 'and keep the checked listbox as a control in the above code, the fill_array variable is only populated with the items displayed in the checkedlistbox - my question is, can i keep the display item the same and pull the other two columns from the datasource, but only for the ones that make the checkeditems list?
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Oct 2, 2011
how to backup my database in local drive when i press a backup button in my vb2010 application...
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Dec 15, 2011
I need to save pictures in my database, my database is MSSQL as of now, my code for getting the picture is this:
Private Sub browsepic_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles browsepic.Click
With dialogpic 'Open File Dialog sa toolbox
.InitialDirectory = "C:UsersCAMILLEPictures"
[code]....
how to save the picture and how to retrieve it?
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Aug 1, 2010
I am aware about the COPY ALWAYS or DO NOT COPY features for files and database files.But my problem is the following:This is the
Public Sub New()
' This call is required by the designer.
InitializeComponent()
Dim mhkos As Integer = 1
Dim ypsos As Integer = 1
[code].....
where the MDF file is located I am getting an error...as the MSSQL server does not allow even to copy the file to an other location.
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Apr 23, 2011
I'm trying to assign some parameters for a stored procedure with some values that are stored in a data table. in the code, I can set the parameter values to the data table, and give a column header or index without issue, but when it tries to execute at runtime it bombs out.the error I get is a variation on "Failed to Convert Parameter Value from a DataColumn to a String" depending on exactly how I try to assign the value.the data types are all correct elsewhere in the code.
my code for this bit is
Try
ConnectionAttempt.Open()
Try
With NewYearCommand_Dates
[code]....
other things I've tried to get this to work are all variations on the .Value=dates bit, such as
.Value=dates(0) (so using column index)
.Value=dates.columns(0) (again using column index)
I've also tried declaring variables, and setting their values to the values in the columns, but the code returns an error saying that "Value of type 'System.Data.DataColumn' cannot be converted to string".I should point out that i'm doing this for 3 tables at once in this sub, 2 of them will only have a single row of data, but the third has an indeterminate number of rows.I'm afraid I don't know what else to do. I'm lead to believe by my mate and my lecturer that this should work, and of course it will work, but the evidence says otherwise.
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Mar 8, 2012
I am trying to Insert/Delete records in a MSSQL database based on if a checkbox is checked or unchecked. The checkbox is an item template in a datagrid, I can check/uncheck the checkbox but it doesn't do an insert or delete. Here is my code:
[Code].....
But then I get the error that the control chkmap has not been declared. I am confused as to how this needs to be declared, do I set a variable to the FindControl("chkmap") and then set it as variable.checked = true ?
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Jan 15, 2012
I was creating an enrollment system for my Thesis, and my adviser told me that I must have a Code in my program that Synchronize database from client and server so that if the terminal connection is "Up" the data will go to the server and if the connection is "Down" the data will go to the installed server on the the local machine. and every 20 mins or 30 mins will sync the database.
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Apr 15, 2012
I have a datetimepicker but the custom format is set to HH:mm tt so that I can get eg 11:20 AM
this value I have stored in database with the help of Label4.Text = DateTimePicker3.Value.ToShortTimeString.
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Apr 25, 2011
How fast did the VB.net inserts a data in a Mssql database??
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Mar 26, 2009
After a save, if the program crashes before I close the window I am loosing my changes. Is there a way to commit? here is my saving
vb
Private Sub TicketBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TicketBindingNavigatorSaveItem.Click
Me.Validate()
[code]....
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May 5, 2009
I have to attach an excel file to a MSSQL 2005 database, using a project written in VB.NET 2005.
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Jul 14, 2011
How can i backup my mssql database using the save file dialog?
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Feb 23, 2010
how to use a dynamic table for my MS SQL database? Im using vb.net 2008...any idea on how to do it?
e.g. - Output
ID LastName FirstName Address Order
001 Doe John Kentucky 10-10
002 Smith Jack Kansas 10-11
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Dec 3, 2009
I have a little problem regarding the use of DBNull, NULL etc. in VB.net in combination with SQL Server 2k.
More specifically, I want to do something along the lines of this:If x = 0 Then
x = DBNull.Value where x is declared by Dim x as Object. I would rather use Double, but I can't assign DBNull.Value to this, and using Object works quite well, too. But every time I hit this condition, I get an exception: A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll This is not a major show-stopper, since the database value I write x to in the next step, is NULL by default - most of the time! So I need the ability to write NULL to it. If that was not the case, I would have been able to work around this by catching exceptions, I think - but sadly, this isn't really of use then.
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Apr 15, 2010
I'm using visual basic 2008 express I have 1 combobox which is populated from a coloum from my database, when I select a value from the combobox I wish to populate several textboxes with data from the row selected. I have created a dataset. How can I do this? Is there a tutorial I can read anywhere
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Feb 27, 2010
this is my code -
[Code]....
this shall populate the dropdownlist data, but in the value i need it to pick up the "ID" field from the stored proc. the stored proc sends two parameters, ID and Name. so i populate name, but how do i populate the id in value like this -
[Code]....
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Jun 6, 2011
I have an Asp web form (language is VB) that is used to update records in a SQL database. The form is populated with the record with many textboxes as well as dropdownlists. I have a textbox that is populated with a date from the record and is displayed with the date and the time. I would like change the format to only display the date as "mm-dd-yyy". In the code behind the date field is called from the database and put into the textbox via:
"MyDate.Text = dt.Rows(0)("MyDate").ToString()".
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Dec 17, 2010
I have a list view populated by a database. The columns for each record are First, Last and EMPID. When I look at the list view on the form at runtime, I can see some/all of the First name and then below that may be part of the Last and some ... periods and no EMPID. When I hover over the record, I can see the EMPID. Is there a way to have all of the information in the record visible in the list view?
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May 15, 2012
I thought this would be an easy one but I can't think of a good way to do it.User submits a webform. Based on submitted information I build three classes and assign their properties from received data:
UserInfo userInfo = new UserInfo();
UserAddress userAddress = new UserAddress();
UserEmployer userEmployer = new UserEmployer();
Based on submitted information some classes end up being populated with properties and some do not.
What's the best way to check whether userInfo class, for example, ended up with properties assigned ? I don't want to save a particular object to the database if it doesn't have any real properties assigned and all of them are set to either null or "".
I only want to save the objects that ended up with at least one real property assigned.ps. using NHibernate to save data to db
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May 30, 2009
i am trying to read a log file which has 2000 lines. Input array is my temp array. while debugging i can see the input array values are populated until input array(9,40) after that the array is populated full of question marks. I don know why it is happening [Code]
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May 8, 2009
After I have retrieved my data from my access database, I would like to insert text into one of the columns in a new row. Is this possible? Here's a snipit of my code I use to retrieve the data from access:
If con.State = ConnectionState.Closed Then con.Open()
sdr = cmd.ExecuteReader()
rtime = Now()
[Code]....
It's the rtotal_time value that I need to insert into a new row, in and cell, the datagrid.
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Sep 21, 2011
accessing values using ODS. i have no idea how to make this work.
im using ASP.NET VB code.
Imports Microsoft.VisualBasic.FileIO
Imports IP2V2.DataAccess
Public Class LotIDParameterDAL
[Code]....
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Jul 20, 2010
How can I display column contents of a MS SQL Database on Text Box using VB 2008
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